36results about How to "Automatically adjust output power" patented technology

The invention discloses a method and device for self-adapting the light source parameters of a distributed optical fiber sensing system. , adjust the optical pulse repetition frequency; Step S2, calculate the standard deviation of the point scattering signal S(L-m)~S(L-n) at the end of the sensing fiber in t measurement periods, and filter to obtain the maximum value of the standard deviation σ max ; Step S3, set σ max and set the default value σ 0 Compare; step S4, if σ max >σ 0 , then increase the output power of the light source, and repeat steps S2-S3 until σ max ≤σ 0 . The invention can monitor the standard deviation of the signal at the tail end of the sensing fiber in real time. The repetition frequency of the pulsed laser is modified in real time by the microcontroller to optimize the system response time. The measured standard deviation is compared with the preset standard deviation. When the measured standard deviation is found to be less than the preset value, the output power of the light source is increased through the microcontroller to improve the signal-to-noise ratio and eliminate the performance degradation caused by the increase in fiber loss.

The invention discloses a computer for circulating cooling and cooling, which belongs to the field of electronics, and comprises a backup water tank, a main water tank, a solenoid valve F1, a solenoid valve F2, a water pump M1, a speed-regulating water pump M2, a solenoid valve F3, a flow rate sensor LL1, and a temperature sensor T1 , solenoid valve F4, cooling pipe, control board and USB interface, solve the technical problem that the water tank is too large in the traditional technology and cannot automatically adjust the power, the invention divides the water tank into two, and automatically adjusts whether to use a spare water tank according to the temperature The cooling water reduces the volume of a single water tank, the water tanks can be installed separately, and the space requirement for the computer case is small. The invention automatically adjusts the output power of the water cooling system, and automatically adjusts the output power of the water pump according to the output power of the computer's own power supply. , so that the output of the computer power supply is not overloaded.

The invention relates to an electromobile hybrid battery-driven system and belongs to a power-driven system for an electromobile, and the system can be used for solving the problems that the output load power of the existing solar battery and storage batter combined hybrid power source is fixed and the output power of a solar battery in the power source is unstable. The electromobile hybrid battery-driven system disclosed by the invention comprises a first storage battery, a vehicle-mounted charging system, a first direct current converter, a second storage battery, a second direct current converter, a solar battery pack, a third direct current converter, a permanent magnetic synchronous motor, a driving controller, a vehicle condition feedback device and an engine control unit. The electromobile hybrid battery-driven system disclosed by the invention can automatically regulate the output power of the solar battery pack and a storage battery pack according to requirement of load power, when the output power of the solar battery pack is insufficient, the storage battery pack is automatically started to supply power, thus optimal coordination of the output power is realized, the problems that the output load power of the existing solar battery and storage battery combined hybrid power source is fixed and the output power of the solar battery in the power source is unstable are solved, and the system can adapt to the power supply requirement of the electromobile.

This invention discloses one intelligent control system, suited to the electronic bicycle, that automatically adjusts the speed of the electronic bicycle under three riding conditions of PAP , VPC and DD, according to whether the rider really steps on or not and rotates the control handles or not. Its characteristic is that the system can automatically judge whether the rider really steps on or not according to the contrast between the pedaling speed and the whole speed, and that the system makes out the size of driving motor power according to the size of signals that the speed sensor passes back. When the rider really steps on, he is in PAP condition without rotating the control handles, or the rider is in VPC condition after he rotates the control handles to regulate the output power of the one-chip drive motor. While the rider doesn't really step on, he can rotate the control handles to regulate the output power of the one-chip drive motor and enters DD condition. Through judging whether or not the rider rotates the control handles and really steps on, the system can automatically switch the three kinds of running conditions of regular man-machine assistance ratio, controllable man-machine assistance ratio and all-control electric driving.

The invention relates to a control system and a control method in the technical field of wind power generation, and specifically relates to a coordination control system and method based on current source type multi-terminal DC wind field unloading. The system comprises a permanent magnetic wind power generator, a diode rectifier, a current source type DC-chopper and a current source type inverter. Each blower fan unit is connected in parallel with the same DC bus line through the DC-chopper and collected DC power is accessed into a network in an inverter mode through the current source type inverter. A DC-chopper control system is parallel connected with the input side of the DC-chopper. Propeller pitch control, blower fan maximum power control, DC side voltage control and DC-chopper control are combined into the coordination control method so that a wind electric power field can realize self adjustment through the coordination control method for satisfying the power demand of an electrical network for the wind electric power field.

The invention discloses a ribbon heater capable of controlling temperature automatically and used for eliminating an electromagnetic field. The ribbon heater comprises a heating element, a first insulating layer, a first metal net and a second insulating layer, wherein the heating element is provided with a first wire and a second wire, and the first insulating layer, the first metal net and the second insulating layer are sequentially arranged on the outer layer of the heating element. A third insulating layer wraps the outer side of the second insulating layer. A second metal net is arranged between the second insulating layer and the third insulating layer. The second metal net is connected with the first wire through a first connecting wire. The rear end of the second metal net is connected with the first wire through a second connecting wire. The rear end of the first metal net is connected with the second wire through a third connecting wire. A leading wire is led out from the front end of the first metal net, and a power supply is connected to the front end of the leading wire and the front end of the first wire. The ribbon heater capable of controlling the temperature automatically and used for eliminating the electromagnetic field has the advantages of being simple in structure, easy to install and maintain, safe, reliable, uniform in temperature, wide in usage, long in service life, capable of automatically adjusting output power and the like.